Bed-bottom



UNITED sTATns PATENT onirica.

A. BINGHAM, OF TALLADEGA, ALABAMA.

BED-BOTTOM.

Specification of Letters Patent No. 25,171, dated .August 23, 1859.

T o all whom 'it may concern:

Be it known that I, A. BINGHAM, of Talladega, in the county of Talladegaand State of Alabama, have invented a new and Improved Bed-Bottom; and Ido hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, in which- Figure 1, is alongitudinal vertical section of my invention. Fig. 2, is a plan or topview of ditto.

Similar lette-rs of reference indicate corresponding parts in the twofigures.

This invention consists in having the bedbottom formed of a series oflongitudinal inclined slats placed at suitable distances apart, theirlower ends attached to a foot rail which is pivoted to the side railsand their upper ends attached to a head rail the ends of which are ttedin curved guides attached to the side rails, each slat resting on aspiral spring and the whole arranged as hereinafter shown whereby7 asimple, durable and elastic bed bot-tom is obtained.

To enable those skilled in the art to fully understand and construct myinvention I will proceed to describe it.

A, A, represent two side rails between which at one end a cross rail B,is pivoted and allowed to turn or work freely. To this rail B, a seriesof wooden slats C, are attached at equal distances apart. These slatseach rest on spiral springs D, and the springs are secured to a crossbar E, the

ends of which are attached to the side railsl A, A. The slats C, aresomewhat inclined, the lower or depressed ends being at the foot of thebed-bottom at the part where they are attached to the cross rail B. Theelevated ends of the slats C, are attached to a head rail F, the ends ofwhich have pins a, driven in it, said pins being fitted in curved orsegment guides G, attached to the rails.

The springs D, it will be seen are lconsiderably nearer the elevatedthan the depressed ends of the slats as more elasticity is required atthat part of the bed-bottom.

The slats C, are retained in proper position by the foot rail B, andhead rail F, and at the same time are allowed to work or move freely inconsequence of the foot rail B, being allowed to turn on its pivots andthe head rail F, allowed to rise and fall in the curved guides G, whichform portions of circles of which the aXis of the foot rail B, is thecenter.

From the above description it will be seen that an elastic yet durablebed-bottom is obtained. The diiculty attending the elastic slattedbed-bottoms hitherto devised has been that the slats have each anindependent movement or, are allowed to yield or vibrate oneindependently of the other, and the bottoms soon get out of repair. Theslats also have in many cases their upper ends attached to elasticstraps which soon lose their elasticity orV become relaxed so as to bevery inefficient. By my invention this difficulty is obviated.

I do not claim broadly the employment or use of longitudinal slatsresting on spiral or other springs to form a bed-bottom for such devicehas been previously used; but,

What I do claim as new and desire to secure by Letters Patent is- Thearrangement and combination of the longitudinal slots C, rocking` footrail B, rising and falling head rail F, and segment guides G, as and forthe purpose herein shown and described.

A. BINGHAM. wWitnesses:

WVM. H. THORNTON, H. H. HAMILL.

